[CMake] BUILD_INTERFACE genex used even in install(EXPORT...

[Mueller-Roemer, Johannes Sebastian]

Actually, I'm using this to make a static library that uses boost useable via find_package without having hard-coded paths inside it and my Config.cmake contains a find_package(Boost 1.56 EXACT REQUIRED COMPONENTS coroutine context system). So it isn't exactly only academic... Yes, it would be simpler if Boost already provided IMPORTED targets, but expecting IMPORTED targets for every library out there is not realistic, so another, ideally less verbose, solution would be incredibly useful.

--
Johannes S. Mueller-Roemer, MSc
Wiss. Mitarbeiter - Interactive Engineering Technologies (IET)

Fraunhofer-Institut für Graphische Datenverarbeitung IGD
Fraunhoferstr. 5  |  64283 Darmstadt  |  Germany
Tel +49 6151 155-606  |  Fax +49 6151 155-139
johannes.mueller-roemer at igd.fraunhofer.de  |  www.igd.fraunhofer.de


-----Original Message-----
From: CMake [mailto:cmake-bounces at cmake.org] On Behalf Of Stephen Kelly
Sent: Tuesday, November 25, 2014 16:14
To: cmake at cmake.org
Subject: Re: [CMake] BUILD_INTERFACE genex used even in install(EXPORT...

Mueller-Roemer, Johannes Sebastian wrote:

> For clarification:
> 
> As an imported target can't have debug and optimized keywords, I can't 
> simply use $<BUILD_INTERFACE:${Boost_LIBRARIES}>
> $<INSTALL_INTERFACE:\${Boost_LIBRARIES}> But have to do
> $<BUILD_INTERFACE:
> $<$<CONFIG:Debug>:
> ...

Yes, but for the user of the target, it's just

 target_link_libraries(mytgt Boost::Coroutine)

This is academic though anyway until someone decides to submit and maintain IMPORTED targets for Boost, or until Boost decides to make them available itself. So, for now, you are correct, it's verbose.

Thanks,

Steve.


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